ImageGear for C and C++ on Windows v19.0
IG_vect_light_set_attenuation
| API Reference Guide > Vector Component API Reference > Vector Component Functions Reference > Light Functions > IG_vect_light_set_attenuation |
This function sets the new constant, linear, and quadratic attenuation factors for the light source.
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AT_ERRCOUNT ACCUAPI IG_vect_light_set_attenuation(
HIG_VECT_LIGHTSOURCE hLightSource,
float fConstant,
float fLinear,
float fQuadratic
);
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| Name | Type | Description |
|---|---|---|
| hLightSource | HIG_VECT_LIGHTSOURCE | Light source handle. |
| fConstant | float | New constant attenuation factor to be set. |
| fLinear | float | New linear attenuation factor to be set. |
| fQuadratic | float | New quadratic attenuation factor to be set. |
Returns 0 if successful. Otherwise, returns the number of ImageGear errors that occurred during this function call.
This function does not process image pixels.
None